Glycerol Impurity 43 CAS 1188-64-3（free base）

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1188-64-3（free base）
Molecular FormulaC3H6O9P2
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Glycerol Impurity 43 CAS 1188-64-3（free base） chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Glycerol Impurity 43 (CAS 1188-64-3（free base）) is a certified pharmaceutical impurity reference standard with the molecular formula C3H6O9P2Na and a molecular weight of 271.01 g/mol.

The molecular framework of Glycerol Impurity 43 (C3H6O9P2Na) is characterized by a phosphate ester group, a carboxylic acid group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

Physical & Chemical Properties

Molecular FormulaC3H6O9P2 4*Na
Molecular Weight271.01 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)1.0

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